Trailer truck



Patented July i5, 1924.

auf TES Parar OFFICE.

JOHN C. w. H IN'sIIAw, or CHICAGO, ILLINOIS, AssIGNOR 'ro MERCURYMANUFACTUR- ING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION orILLINOIS.

TRAILER TRUCK.

To all whom t may concern:

Be it known that I, JOHN W. HIN:

SHAW, a citizen f the United States, and

.a resident of Chicago, in the county of Cook and State of Illinois,have invented certain -ne'w and useful Improvements in Tg'ailerTrucks,of which the following is a specification, reference being had totheaccolpanying drawings. y y invention relates` particularly. t0 trucks oftheftype known -as trailer trucks, or trucks-adapted-to :becoupledtogether in ,series so that they may be .drawn by a' smallloading the truck easier, increasing its stability, and making it'runmore easily' so that less power is required tO haul 1t. lso to provide aconstruction by which the prin- A'cipal parts of the'truck may beassembled ih separate halves which may afterwards be easily united s0thatlthe yparts can be stored, Or'packed for shipment, more cOn-.veniently and with great economy to space. Other meritorious, features.of my improved truck will be .pointed out 1n connection with thedescription thereof. lWhat I regard as new and of my invention will fbeset forth in the claims. c

In the accompanying draw1ngs,-.`

proved truck;

Fig. 2 is a vertical cross-section'thereotff on line 2-2 of Fig. 4:;

Fig. 3 is an enlarged'longitudinal Vertical section on Vline .3-3 y'ofFig. 4 partly broken'away; Y Fig. 4 is a plan view, part of the platformbeing broken away; and- Fig. 5 is a longitudinal vertical section online 5-5 of Fig; l partly broken away. f My improved truckcomprises arectangular frame 6, preferably rounded at-the corners, which frame iscomposed of 'two U-shaped T iron members 6a, 6b, the end y portions ofwhich fit `together and are rig- Appiication mea July 2s, 1922. serialNo. mp9s.

Fig. 1 is a perspective view of my edat bothends and provided with nuts22a ..222-'abovethe plates 15, 16and below the l plates 'i8'respectively-.I The upper ends of The rearl portion olf-the truck issupported idly' secured to. each other 'by connecting plates 7 8 whichOverlap them and are riveted in place. The connecting plate 8 ispreferably U-shaped, as shown in Fig. 4, and supports a bolt 9 by whicha yoke 10 is piv- 60 otally connected vwith said plate so' as to swingvertically. `The yoke 10 is provided "with a hook 11as shown in Fig. 1,for coupling the truck-.to the rear. end of a similar truck.- Ifheconnecting plate 7 has secured tolta ring .plate 12, as shown in Fig. 4,

Avadapted to receive-the hookof an adjoining v truck for couplingpurposes. The end portions o each Ot the members 6, 6b are connectedtogether and braced by longitudinallyextending angle bars 13, 414,asbest shown in Figs. 2 and'll, the end portions of said angle barsbeing deected downwardly far enough so thatthey ma 'extend under thehorizontal flange 6c oft e T bar member to which they are respectivelyconnected, as best shown in Fig. 5.A

Near the forward end of the truck are provided -two horizontal plates15, 16, the `plate 15 being connected withthe horizontal flange 6c of'the member 6and with the horizontal flange of the angle bar 13,' whilethe plate 16 is similarly connected with the member .6b and theangle'bar 14.k These. plates lare provided at their under sides with acircular raoe way adapted to receive a series .o-tanti-friction balls 17which are interposedbetween s id plates andcircular bearing plates 18arranged below the plates 15, 16 respectively. The bearing plates 18arecarried at the. upper ends of yokes'19 -inwhich are mounted frontwheels 20, 21,

x and said bearingplates are connected with theplat'es 15, 16 to swingabout vertical axes these rodsV are screwed into the plates 15, 16', sothat they are'llocked 'irmly in position by the nuts 22a as shown 1nFig. 5.

' Thus the wheels20, 21 areA ini'effect caster wheels which adaptthemselves to the di-l rection in which the truck is being hauled.`

by wheels 24, 25 which, as best shown in Fi 2, are `'mounted upon -anaxle 26, the en portions of which are mounted in bearings 27, 28 carriedby brackets 29, 30 s ecured to the members l6, 6" at opposite sides 11nlos y vsecured to said angle bars and extend downward far enough to bearupon the upper portion of the sleeve 31, as bestl shown inV Figs. 2 and5.

\ It will be noted that except for the con necting plates 7, 8, the rearaxle and Wheels, and the spacer sleeve 31the truckstructure .i iscomposed of two similar complementary units, to wit, the members 6, 6*and the duplicate parts attached thereto. In order to .complete thetruck, therefore, it is neceslsary only to lsecure the twohalvestogether,

put the rear axle and wheels inA place and' then apply the platform. Myimproved truck may, therefore, be left in a knock down condition forstorage purposes or for may be done by, any ordinary mechanic in a veryshort time. p.

The truck is completed by fitting a platform or deck 36 upon the uppersurface of the` horizontal flange 6c, as shown in the drawings, andpreferably by applying also a pair of longitudinallyextending sidestrips 37, 38 along thepopposite side margins of the frame. These sidestrips, which are beveled as shown in- Fig-,42, serve to tilt thepackages placed on the truck slightly toward the center thereof, so thatthey are not apt to fallv off.; The use of such strips is Well known inthe art.

For the purpose pf providing means for supporting upright` stakes atvarious points around' the margins ofthe truck, the horizontal ange 6 isbored at suitable inter-- vals, as shown at 39, 40 in Fig. 1, and registeringholes/are also provided in the platform. Underneath the holes 39the flange 6 is provided with pockets 41 which are riveted thereto, asshown in Eig. 3, and under the` holes-40 the brackets 29`are pro videdwith pockets 42. The lower ends of the stakes fit in these pockets 41,42, so that they are firmly secured in an upright position. y

By making the frame of the truck of T bars, and connecting the platformand Wheel supports to the horizontal flanges of such T bars, wheels oflarger diameter'may be usedv cal Hanges of the` T bars strongly resistver? tical strains, and the horizontal flange provides adequate. supportagainst lateral strains. The longitudinally-extending angle ironssupport the platform'. intermediately and further strengthen and supportthe end portions of the truck, and at the same time they serve to carrythe inner margins of the plates 15, 16 which formthe upper bearings forthe caster Wheels. y What ,I claim as my invention and' desire to secureby Letters Patent, is-

l. A truck frame comprising two substan- ,tially U-shapcd T ironmembers, longitudinally-extending bars connecting the end portions ofeach of said members together, and means. fixedly connecting said twomembers together to form a substantially ret'ztangularl frame.

2. A truck comprising a substantially rec tangular frame, bracketssecured to the side members of the frange and having axle bearings andstakereceiving pockets `carried by said brackets under the side portionsof said frame and registering with openings therein.

3. A truck comprising a substantially rectangular T iron frame havingstake receiving holes in the horizontal flanges at opposite sides ofsaid frame, brackets secured to said horizontal flanges and having stakereceiving pockets adapted to register With said holes, and axle bearingscarried by said brackets.

' JOHN C. W. HINSHAW.

